import java.util.Scanner;

/**
 * @Author 12629
 * @Date 2022/4/21 17:17
 * @Description：
 */

public class TestDemo{


    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int n = scan.nextInt();
        if(n % 2 == 0) {
            System.out.println("这是一个偶数！");
        }else {
            System.out.println("这是一个奇数！");
        }
    }

    public static void main18(String[] args) {
        int a = 1;
        if(a == 1) {
            System.out.println("hello");
            System.out.println("haha");
        }else{
            System.out.println("ffaa");
        }
    }

    public static void main17(String[] args) {
        int a = 10;
        if(a==1) {
            System.out.println(a);
        }else if(a == 2){
            System.out.println("hahah");
        }else {
            System.out.println("bit");
        }
    }

    public static void main16(String[] args) {
        System.out.println("1");
        System.out.println("4");
        System.out.println("2");
        System.out.println("3");
    }

    public static void main15(String[] args) {
        System.out.println(true?1:2.0);
        boolean flg = false ? false : true == true ? true : false;
        System.out.println(flg);
    }

    public static void main14(String[] args) {
        System.out.println(-1>>>1);
        int a = 1;
        int b = 2;
        //int max = a>b?1:2.0;
        //a>b?a:b;
        //System.out.println(max);
    }

    public static void main13(String[] args) {
        int a = 0;
        System.out.println(a == 0);
        float f = 0.0f;
        System.out.println(f == 0);
    }

    public static void main12(String[] args) {
        int a = 1;
        System.out.println(!(a==1));
    }


    public static void main11(String[] args) {
        int a = 1;
        int b = 2;
        System.out.println(a >= 1 || b > 2);
        System.out.println(a >= 1 ||(19/0 == 0));
    }

    public static void main10(String[] args) {
        int a = 1;
        int b = 2;
        System.out.println((a > b) && (19/0 == 0));
    }

    public static void main9(String[] args) {
        System.out.println(true && true);
        System.out.println(true && false);
        System.out.println(false && true);
        System.out.println(false && false);
    }

    public static void main8(String[] args) {
        int a = 1;
        int b = 2;
        System.out.println(a == b);//两个等号
        System.out.println(a > b);
        System.out.println(a >= b);
        System.out.println(a < b);
        System.out.println(a <= b);
        System.out.println(a != b);
    }
    public static void main7(String[] args) {
        int a = 1;
        int b = a++;//b=a  a=a+1;
        System.out.println("a: "+a);//2
        System.out.println("b："+b);
    }

    public static void main6(String[] args) {
        short s1 = 10;
        //s1 = (short) (s1+1);
        s1+=1;
        System.out.println(s1);//
    }


    public static void main5(String[] args) {
        int a = 1;
        a+=1;//a=a+1;
        System.out.println(a);
    }
    public static void main4(String[] args) {
        //可以对 小数进行求余数
        System.out.println(11.5%2.0);
    }

    public static void main3(String[] args) {
        //System.out.println(5/0);
        System.out.println(10%3);//
        System.out.println(10%-3);//
        System.out.println(-10%3);//
        System.out.println(-10%-3);//
    }

    public static void main2(String[] args) {
        System.out.println(5/2);//为什么5/2=2
        System.out.println((float)5/2);//
        System.out.println(5/(float)2);//
        System.out.println((float)(5/2));//
    }

    public static void main1(String[] args) {
        boolean flg = false;
        //int a = (int)flg;
        System.out.println("\\\"hello\\\"");
    }
}
